A AGROINDÚSTRIA: UMA VISÃO DESDE A AUDITORIA AMBIENTAL

Environmental Audit concept (AA) measures and evaluates the consequences and impacts of the development of a business, whether agricultural, industrial or service on the environment, just identified manner provides and interprets the effects on natural resources causes the development of this activity. Due Agribusiness uses resources provided by agriculture, forestry and fisheries, transforming them by using industrial methods, based on technological processes, which often come to negatively impact the surrounding environment, this is where an environmental audit is necessary, in order to measure and assess whether the organization has an appropriate environmental management system that complies with the regulations on the environment; in order to find and implement appropriate corrective controls, to mitigate and avoid incurring environmental liabilities. The objective was to create an information system for environmental auditing model applied to agribusiness. The type of research is documentary in that collects, analyzes and appropriates information on accounting standards, auditing, and ethics that relates to the work of an environmental auditor; for which, the research team created a tool that allows you to systematize each of the phases that an environmental audit must cover, this tool also stores and processes the information obtained and issues reports on findings of non-compliance with the standard.El concepto de auditoría ambiental (aa) sirve para medir y evaluar las consecuencias e impactos que tiene el desarrollo de una actividad empresarial, bien sea agrícola, industrial o de servicios, sobre el entorno; de la misma manera,identifica, prevé e interpreta los efectos que origina sobre los recursos naturales el desarrollo de dicha actividad.Debido a que la agroindustria hace uso de recursos entregados por la agricultura, la actividad forestal y la pesca,transformándolos mediante el uso de métodos industriales, con base en procesos tecnológicos, que en muchas ocasiones llegan a impactar de manera negativa el entorno medioambiental, una aa se hace necesaria para medir y evaluar si las organizaciones cuentan con un adecuado sistema de gestión ambiental, de tal manera que cumpla con la normatividad sobre el medio ambiente; con el fin de buscar e implantar controles y correctivos adecuados, que mitiguen y eviten incurrir en pasivos ambientales.El objetivo general fue crear un sistema de información para el modelo de aa aplicado a la agroindustria, y el tipo de investigación es documental por cuanto recopila, analiza y apropia información sobre la normatividad contable, deauditoría y de ética, que se relaciona con el quehacer de un auditor ambiental; para esto, el Grupo creó una herramienta que le permite sistematizar cada una de las fases que debe abarcar una auditoría de este tipo; dicha herramienta,además, almacena y procesa la información obtenida, emitiendo informes sobre hallazgos por el no cumplimiento de la norma.Palabras clave: agroindustria, auditoría ambiental, impacto ambiental, medio ambiente.O conceito de auditoria ambiental (AA) serve para medir e avaliar as consequências e impactos que tem o desenvolvimento de uma atividade empresarial, seja esta agrícola, industrial, o de serviços, sobre o entorno; do mesmo jeito, identifica, prevê e interpreta os efeitos que origina sobre os recursos naturais o desenvolvimento de tal atividade. A consequência que a agroindústria utiliza recursos entregados pela agricultura, a atividade florestal e a pesca, transformando-os através do uso de métodos industriais, baseado em processos tecnológicos, que em muitos casos chegam até impactar de jeito negativo o entorno meio ambiental, uma AA se faz necessária para medir e avaliar se as organizações possuem um sistema adequado de gestão ambiental, de jeito que se ajuste à regulação sobre o meio ambiente, com fim de procurar e implantar controles e corretivos adequados, que amolem e evitem incorrer em passivos ambientais. O objetivo geral foi criar um sistema de informação para o modelo de AA aplicado a agroindústria, e o tipo de pesquisa é documental por quanto compila, analisa, e apropria informação sobre a normatividade contável, de auditoria e de ética, relacionada com a atividade de um auditor ambiental; para isso o Grupo criou uma ferramenta que lhe permite sistematizar cada uma das fases que deve abranger uma auditoria deste tipo; a tal ferramenta, além, armazena e processa a informação obtida, emitindo informes sobre achados pela falta de acatamento da norma

Solvent Effects on the Structure−Property Relationship of Redox-Active Self-Assembled Nanoparticle−Polyelectrolyte−Surfactant Composite Thin Films: Implications for the Generation of Bioelectrocatalytic Signals in Enzyme-Containing Assemblies

The search for strategies to improve the performance of bioelectrochemical platforms based on supramolecular materials has received increasing attention within the materials science community, where the main objective is to develop low-cost and flexible routes using self-assembly as a key enabling process. Important contributions to the performance of such bioelectrochemical devices have been made based on the integration and supramolecular organization of redox-active polyelectrolyte−surfactant complexes on electrode supports. Here, we examine the influence of the processing solvent on the interplay between the supramolecular mesoorganization and the bioelectrochemical properties of redox-active self-assembled nanoparticle−polyelectrolyte−surfactant nanocomposite thin films. Our studies reveal that the solvent used in processing the supramolecular films and the presence of metal nanoparticles not only have a substantial influence in determining the mesoscale organization and morphological characteristics of the film but also have a strong influence on the efficiency and performance of the bioelectrochemical system. In particular, a higher bioelectrochemical response is observed when nanocomposite supramolecular films were cast from aqueous solutions. These observations seem to be associated with the fact that the use of aqueous solvents increases the hydrophilicity of the film, thus favoring the access of glucose, particularly at low concentrations. We believe that these results improve our current understanding of supramolecular nanocomposite materials generated via polyelectrolyte−surfactant complexes, in order to use the processing conditions as a variable to improve the performance of bioelectrochemical devices.Facultad de Ciencias ExactasInstituto de Investigaciones Fisicoquímicas Teóricas y Aplicada

Structure of the Hsp110:Hsc70 nucleotide exchange machine.

Hsp70s mediate protein folding, translocation, and macromolecular complex remodeling reactions. Their activities are regulated by proteins that exchange ADP for ATP from the nucleotide-binding domain (NBD) of the Hsp70. These nucleotide exchange factors (NEFs) include the Hsp110s, which are themselves members of the Hsp70 family. We report the structure of an Hsp110:Hsc70 nucleotide exchange complex. The complex is characterized by extensive protein:protein interactions and symmetric bridging interactions between the nucleotides bound in each partner protein\u27s NBD. An electropositive pore allows nucleotides to enter and exit the complex. The role of nucleotides in complex formation and dissociation, and the effects of the protein:protein interactions on nucleotide exchange, can be understood in terms of the coupled effects of the nucleotides and protein:protein interactions on the open-closed isomerization of the NBDs. The symmetrical interactions in the complex may model other Hsp70 family heterodimers in which two Hsp70s reciprocally act as NEFs

Antimicrobial stewardship programs in adult intensive care units in Latin America: Implementation, assessments, and impact on outcomes

OBJECTIVE: To assess the impact of antimicrobial stewardship programs (ASPs) in adult medical-surgical intensive care units (MS-ICUs) in Latin America. DESIGN: Quasi-experimental prospective with continuous time series. SETTING: The study included 77 MS-ICUs in 9 Latin American countries. PATIENTS: Adult patients admitted to an MS-ICU for at least 24 hours were included in the study. METHODS: This multicenter study was conducted over 12 months. To evaluate the ASPs, representatives from all MS-ICUs performed a self-assessment survey (0-100 scale) at the beginning and end of the study. The impact of each ASP was evaluated monthly using the following measures: antimicrobial consumption, appropriateness of antimicrobial treatments, crude mortality, and multidrug-resistant microorganisms in healthcare-associated infections (MDRO-HAIs). Using final stewardship program quality self-assessment scores, MS-ICUs were stratified and compared among 3 groups: ≤25th percentile, \u3e25th to \u3c75th \u3epercentile, and ≥75th percentile. RESULTS: In total, 77 MS-ICU from 9 Latin American countries completed the study. Twenty MS-ICUs reached at least the 75th percentile at the end of the study in comparison with the same number who remain within the 25th percentile (score, 76.1 ± 7.5 vs 28.0 ± 7.3; P \u3c .0001). Several indicators performed better in the MS-ICUs in the 75th versus 25th percentiles: antimicrobial consumption (143.4 vs 159.4 DDD per 100 patient days; P \u3c .0001), adherence to clinical guidelines (92.5% vs 59.3%; P \u3c .0001), validation of prescription by pharmacist (72.0% vs 58.0%; P \u3c .0001), crude mortality (15.9% vs 17.7%; P \u3c .0001), and MDRO-HAIs (9.45 vs 10.96 cases per 1,000 patient days; P = .004). CONCLUSION: MS-ICUs with more comprehensive ASPs showed significant improvement in antimicrobial utilization

Apoptosis induction in Jurkat cells and sCD95 levels in women's sera are related with the risk of developing cervical cancer

<p>Abstract</p> <p>Background</p> <p>Currently, there is clear evidence that apoptosis plays an important role in the development and progression of tumors. One of the best characterized apoptosis triggering systems is the CD95/Fas/APO-1 pathway; previous reports have demonstrated high levels of soluble CD95 (sCD95) in serum of patients with some types of cancer. Cervical cancer is the second most common cancer among women worldwide. As a first step in an attempt to design a minimally invasive test to predict the risk of developing cervical cancer in patients with precancerous lesions, we used a simple assay based on the capacity of human serum to induce apoptosis in Jurkat cells. We evaluated the relationship between sCD95 levels and the ability to induce apoptosis in Jurkat cells in cervical cancer patients and controls.</p> <p>Methods</p> <p>Jurkat cells were exposed to serum from 63 women (20 healthy volunteers, 21 with cervical intraepithelial neoplasia grade I [CIN 1] and 22 with cervical-uterine carcinoma). The apoptotic rate was measured by flow cytometry using Annexin-V-Fluos and Propidium Iodide as markers. Serum levels of sCD95 and soluble CD95 ligand (sCD95L) were measured by ELISA kits.</p> <p>Results</p> <p>We found that serum from almost all healthy women induced apoptosis in Jurkat cells, while only fifty percent of the sera from women with CIN 1 induced cell death in Jurkat cells. Interestingly, only one serum sample from a patient with cervical-uterine cancer was able to induce apoptosis, the rest of the sera protected Jurkat cells from this killing. We were able to demonstrate that elimination of Jurkat cells was mediated by the CD95/Fas/Apo-1 apoptotic pathway. Furthermore, the serum levels of sCD95 measured by ELISA were significantly higher in women with cervical cancer.</p> <p>Conclusion</p> <p>Our results demonstrate that there is a strong correlation between low levels of sCD95 in serum of normal women and higher apoptosis induction in Jurkat cells. We suggest that an analysis of the apoptotic rate induced by serum in Jurkat cells and the levels of sCD95 in serum could be helpful during the prognosis and treatment of women detected with precancerous lesions or cervical cancer.</p

Effects of luteectomy in early pregnancy on the maintenance of gestation and plasma progesterone concentrations in the viviparous temperate lizard Barisia imbricata imbricata

<p>Abstract</p> <p>Background</p> <p>Several studies have shown that the corpus luteum is the principal source of progesterone during the gravidity period in reptiles; however, its participation in the maintenance of gestation in the viviparous squamata is in dispute. The effects of ovariectomy or luteectomy vary according to the species and the time at which the procedure is performed. In this paper, we describe the effects of luteectomy during early pregnancy on the maintenance of gestation and progesterone concentrations in the temperate Mexican viviparous lizard <it>Barisia imbricata imbricata.</it></p> <p>Methods</p> <p>Twenty-four lizards were subjected to three different treatments: luteectomy, sham luteectomy or non-surgical treatment, and blood samples were obtained before and after surgical treatment at different stages of gestation to determine the effects of luteectomy on the maintenance of gestation and progesterone concentrations.</p> <p>Results</p> <p>Spontaneous abortion was not observed in any of the females. However, luteectomy provoked abnormal parturition and a significant reduction in the number of young born alive. Parturition was normal in untreated females as well as those submitted to sham luteectomy. The surgical treatment also caused a significant reduction in progesterone concentrations in luteectomised females during early and middle gestation. However, no significant differences in hormone concentrations were observed among the three groups during late gestation or immediately post-parturition.</p> <p>Conclusions</p> <p>Our observations indicate that the presence of the corpus luteum is not necesary for the maintenance of gestation, but that it does participate in parturition control. Moreover, the corpus luteum of the viviparous lizard <it>B. i. imbricata</it> produces progesterone, at least during the first half of pregnancy, and that an extra-ovarian source of progesterone must maintain gestation in the absence of luteal tissue.</p

Augmented serum level of major histocompatibility complex class I-related chain A (MICA) protein and reduced NKG2D expression on NK and T cells in patients with cervical cancer and precursor lesions

<p>Abstract</p> <p>Background</p> <p>Cervical cancer is the second most common cancer in women worldwide. NK and cytotoxic T cells play an important role in the elimination of virus-infected and tumor cells through NKG2D activating receptors, which can promote the lysis of target cells by binding to the major histocompatibility complex class I-related chain A (MICA) proteins. Increased serum levels of MICA have been found in patients with epithelial tumors. The aim of this study was to compare the levels of soluble MICA (sMICA) and NKG2D-expressing NK and T cells in blood samples from patients with cervical cancer or precursor lesions with those from healthy donors.</p> <p>Methods</p> <p>Peripheral blood with or without heparin was collected to obtain mononuclear cells or sera, respectively. Serum sMICA levels were measured by ELISA and NKG2D-expressing immune cells were analyzed by flow cytometry. Also, a correlation analysis was performed to associate sMICA levels with either NKG2D expression or with the stage of the lesion.</p> <p>Results</p> <p>Significant amounts of sMICA were detected in sera from nearly all patients. We found a decrease in the number of NKG2D-expressing NK and T cells in both cervical cancer and lesion groups when compared to healthy donors. Pearson analysis showed a negative correlation between sMICA and NKG2D-expressing T cells; however, we did not find a significant correlation when the analysis was applied to sMICA and NKG2D expression on NK cells.</p> <p>Conclusion</p> <p>Our results show for the first time that high sMICA levels are found in sera from patients with both cervical cancer and precursor lesions when compared with healthy donors. We also observed a diminution in the number of NKG2D-expressing NK and T cells in the patient samples; however, a significant negative correlation between sMICA and NKG2D expression was only seen in T cells.</p

Hilando generaciones y moda

El proyecto Hilando Generaciones y Moda tiene como objetivo principal fomentar el intercambio y la convivencia intergeneracional entre jóvenes del ITESO y adultos mayores que acuden al Centro Tapatío de Atención al Adulto Mayor, ubicado en Guadalajara, Jalisco. La problemática que se busca resolver con este proyecto es la falta de interacción y comunicación entre estas dos generaciones, lo que puede llevar a la desconexión y aislamiento social de los adultos mayores, así como a una falta de perspectiva y comprensión por parte de los jóvenes sobre las experiencias y desafíos que enfrentan las personas mayores. El proyecto busca romper con estas barreras mediante la realización de actividades que promuevan la convivencia y el aprendizaje mutuo entre ambas generaciones, permitiendo la integración social y emocional de los adultos mayores, así como el desarrollo de habilidades sociales y empáticas en los jóvenes. A través de la interacción y el diálogo entre ambas generaciones, se espera generar un ambiente de respeto y valoración hacia la sabiduría y experiencia de los adultos mayores, así como una comprensión más profunda de las realidades sociales y culturales que enfrentan. A lo largo del semestre hicimos distintas actividades relacionadas con moda, que fueron propuestas por nosotros mismos. Estos talleres pensados en los adultos mayores nos dejarían productos que reflejaran la identidad de cada adulto y con los que después haremos una exposición final. Nuestras primeras actividades con los adultos fueron hacer un collage y un esqueleto exquisito, en el que hablarían sobre ellos y podríamos conocerlos mejor. Después tuvimos un taller de joyería en el CETAM, donde los adultos crearon dijes personalizados. La siguiente actividad fue un taller de creación y personalización de playeras. Para esta, los adultos nos visitaron en el ITESO, donde compartimos desayuno, baile y creatividad con las pinturas para personalizar cada playera. Este semestre colaboramos con Andrés Moreno, stylist y creador de Vintage Ceremony. Andrés nos asesoró en nuestro camino para nuestra siguiente actividad: una sesión de fotos que buscó resaltar la identidad de cada adulto mayor. En esta sesión de fotos contamos con patrocinio de peinado y maquillaje. Nuestra última actividad será la exposición final, donde mostraremos los resultados de todas las actividades, como prendas hechas por los alumnos de moda (con telas diseñadas por ellos, inspiradas en los adultos).ITESO, A.C

Epidemiological trends of HIV/HCV coinfection in Spain, 2015-2019

Altres ajuts: Spanish AIDS Research Network; European Funding for Regional Development (FEDER).Objectives: We assessed the prevalence of anti-hepatitis C virus (HCV) antibodies and active HCV infection (HCV-RNA-positive) in people living with HIV (PLWH) in Spain in 2019 and compared the results with those of four similar studies performed during 2015-2018. Methods: The study was performed in 41 centres. Sample size was estimated for an accuracy of 1%. Patients were selected by random sampling with proportional allocation. Results: The reference population comprised 41 973 PLWH, and the sample size was 1325. HCV serostatus was known in 1316 PLWH (99.3%), of whom 376 (28.6%) were HCV antibody (Ab)-positive (78.7% were prior injection drug users); 29 were HCV-RNA-positive (2.2%). Of the 29 HCV-RNA-positive PLWH, infection was chronic in 24, it was acute/recent in one, and it was of unknown duration in four. Cirrhosis was present in 71 (5.4%) PLWH overall, three (10.3%) HCV-RNA-positive patients and 68 (23.4%) of those who cleared HCV after anti-HCV therapy (p = 0.04). The prevalence of anti-HCV antibodies decreased steadily from 37.7% in 2015 to 28.6% in 2019 (p < 0.001); the prevalence of active HCV infection decreased from 22.1% in 2015 to 2.2% in 2019 (p < 0.001). Uptake of anti-HCV treatment increased from 53.9% in 2015 to 95.0% in 2019 (p < 0.001). Conclusions: In Spain, the prevalence of active HCV infection among PLWH at the end of 2019 was 2.2%, i.e. 90.0% lower than in 2015. Increased exposure to DAAs was probably the main reason for this sharp reduction. Despite the high coverage of treatment with direct-acting antiviral agents, HCV-related cirrhosis remains significant in this population

Kwapa: Gente del río. Estrategias transmedia de impacto social

El PAP Alter Código, período Primavera 2023, trabajó con los dos proyectos que se han venido trabajando en semestres anteriores: el videojuego A Orillas del río y el documental Déjennos pescar. Ambos proyectos parten de la metodología interdisciplinaria y colaborativa con miembros de la comunidad Cucapá para crear representaciones audiovisuales no estigmatizantes, que detonen el sentido de comunidad y refuercen su acervo cultural. El videojuego A Orillas del río es del género point and click, de vista isométrica, el cual está inspirado en el cuento oral tradicional El zorro y el coyote, que busca ser una herramienta lúdica de aprendizaje para reforzar el aprendizaje de la lengua Cucapá en los niños. Los resultados obtenidos fueron el demo del nivel uno (escenas uno y dos); colorimetría, arcos de personajes principales; programación de minijuegos. Dentro del documental ‘Déjennos pescar’ los resultados fueron un montaje, una clasificación del material grabado con transcripciones de audio, mientras que en la parte de estrategia de impacto se creó un manual de uso de redes sociales con colorimetría, tipografía, estilo de voz, tipo de contenido según la red social, para los futuros integrantes del equipo.ITESO, A.C